Question

In: Statistics and Probability

Given the sample data. x: 20 26 19 15 29 (a) Find the range. (b) Verify...

Given the sample data.

x:

20

26

19

15

29

(a) Find the range.

(b) Verify that Σx = 109 and Σx² = 2503.

Σx
Σx²

(c) Use the results of part (b) and appropriate computation formulas to compute the sample variance s² and sample standard deviation s. (Enter your answers to one decimal place.)

s²
s

(d) Use the defining formulas to compute the sample variance s² and sample standard deviation s. (Enter your answers to one decimal place.)

s²
s

(e) Suppose the given data comprise the entire population of all x values. Compute the population variance σ² and population standard deviation σ. (Enter your answers to one decimal place.)

σ²
σ

Expert Solution

orchestra answered 2 years ago

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